Mike Mayock singled out two players that may have helped their stock during a recent segment of "Path to the Draft," and two players that shouldn't see their value change much based off the combine. Let's do this.

Opened eyes

» Texas A&M wide receiver Ryan Swope ripped off a 40-yard dash time of 4.34 seconds. While Swope manned the slot in college, the fast time could make teams see Swope as an outside receiver. That might push Swope from a third- to a second-round value, according to Mayock. The larger concern here is Swope's medical situation. Mayock notes that not a lot of people in the media know Swope suffered multiple concussions in college. That could scare teams away.

» Arkansas running back Knile Davis is a freak from a "power and speed perspective." The combine reminded teams of that. Then again, Davis was either hurt or ineffective in 2011 and 2012 after a breakout 2010 campaign.

Mayock thinks Davis is getting pushed up charts to the second or third round. He looks like a classic boom or bust pick.

Didn't change stock

» Baylor wide receiver Terrance Williams looks like an NFL receiver and had big production in college. But his poor lower body explosion numbers and slow times confirmed what a lot of scouts see on tape from Williams. Mayock thinks he looks like a third-round pick.

» Texas A&M running back Christine Michael blew up the combine with great measurables. Mayock says Michael is "at least" a second-round pick, but the concerns with Michael aren't about talent. He has a history of off-field incidents and landed in coach Kevin Sumlin's dog house. Mayock says the combine doesn't change that.